Finding the Fourth Proportional to 1,223.30, 1,837.12 and 948.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,223.30 : 1,837.12 = 948.56 : x
2. Step 2: Convert to fraction form
   1,223.30/1,837.12 = 948.56/x
3. Step 3: Cross multiply
   1,223.30x = 1,837.12 × 948.56
4. Step 4: Simplify right side
   1,223.30x = 1,742,618.55
5. Step 5: Solve for x
   x = 1,742,618.55/1,223.30
6. Step 6: Final answer
   x = 1,424.52